Play-free articulation for a seat with tipping backrest and its

Details Play-free articulation for a seat with tipping backrest and its Play-free articulation for a seat with tipping backrest and its

1994-12-21

1996-04-16

Nelson, Jr., Milton

Chairs and seats

Movable back

Tiltable

2973781, B60N 220

Patent

active

055075614

ABSTRACT:
An articulation having a fixed flange (21) secured to the seat part (11) and a movable flange (22) associated with the backrest (12), a bearing (30) made of male (31) and female parts (32), a lock (40) made of a fixed stop piece (41), of a movable latch (42) and of an elastic urging element (43), and an operating member (50) acting on the latch (42) counter to the elastic urging element (43). The articulation is such that at least one of these male (31) and female (32) parts has a non-circular configuration, and that the stop piece (41) has a cam-shaped profile and the latch (42) has a cam-follower-shaped profile and that the bearing (30) and the lock (40) are placed relative to one another in such a way that when the cam and cam follower are applied against one another the male part (31) and the female part (32) tend to move relative to one another in the direction which takes up the play between them.

REFERENCES:
patent: 4147386 (1979-04-01), Stolper
patent: 4484779 (1984-11-01), Suzuki
patent: 5150632 (1992-09-01), Hein
patent: 5156439 (1992-10-01), Idlani et al.
patent: 5205609 (1993-04-01), Notta et al.
patent: 5211445 (1993-05-01), Husted et al.
patent: 5240309 (1993-08-01), Kojer
patent: 5383699 (1995-01-01), Woziekonski et al.

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